Finding the Fourth Proportional to 194,624,138.64, 268,582,020.84 and 105,316,083.12
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Solution
The fourth proportional to 194,624,138.64, 268,582,020.84 and 105,316,083.12 is: 145,336,578.64
Step by Step Solution
- Step 1: Write the proportion equation
194,624,138.64 : 268,582,020.84 = 105,316,083.12 : x - Step 2: Convert to fraction form
194,624,138.64/268,582,020.84 = 105,316,083.12/x - Step 3: Cross multiply
194,624,138.64x = 268,582,020.84 × 105,316,083.12 - Step 4: Simplify right side
194,624,138.64x = 28,286,006,431,323,012 - Step 5: Solve for x
x = 28,286,006,431,323,012/194,624,138.64 - Step 6: Final answer
x = 145,336,578.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.